Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
FRONTIER · FLIGHT F9 1859
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Today
F9 1859 · AUS → DEN
departs 8:12 PM CT · arrives 9:41 PM MT
Forecast issued Sat 3:00 PM ET · 6h before departure
Watch this flight
Other days
Today
Sun 10/4 30%
Odds over time
Arrive at DEN more than 15 minutes late?
35%
chance · ±0 pts
+15 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
35%
Leave 15+ late
46%
Arrive 1h+ late
10%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
5.0d
2d
1d
12h
Now
Departs
Lands
Arrive at DEN more than 15 minutes late?
Calm-weather odds: 20% · changed +15 pts in 24h
+15 pts
35%
Yes 35%
No 65%
Leave AUS more than 15 minutes late?
Calm-weather odds: 24% · changed +19 pts in 24h
+19 pts
46%
Yes 46%
No 54%
Arrive at DEN more than an hour late?
Calm-weather odds: 5% · changed +4 pts in 24h
+4 pts
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to DEN?
On time or early
65%
15–30 min late
22%
30 min–1 hour late
3%
1–2 hours late
7%
Over 2 hours late
3%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
F9's recent on-time record
↑
Cloud base down to 800 ft forecast at AUS that day
↑
Later flights pick up delays from earlier in the day
↓
Saturdays in October are usually quieter than average
↓
DEN usually runs smoothly
Weather at each end
AUS (origin)
Gusts 18 kt Ceiling 800 ft Visibility 7 mi Precip none
DEN (destination)
Gusts 26 kt Ceiling none (clear) Visibility 10+ mi Precip none
How this resolves
Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.
Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.